The phrase "reduce validity" is correct and usable in written English.
It can be used in contexts where you want to express the idea of diminishing the truthfulness or reliability of something.
Example: "The new evidence may reduce validity of the previous findings."
Alternatives: "diminish credibility" or "undermine reliability."
CONCLUSIONS: IRB variability in interpretation and application of regulations affects consistency of study procedure across sites and may reduce validity of study findings.
Firstly, the reduced number of successful blood collections may be considered as a limitation and could reduce validity of presented results.
Furthermore, NS involves a wide range of tools and techniques to choose between that can create uncertainty and reduce validity.
First, due to time constraints, in many cases, we were not able to continue cognitive testing until we reached saturation and may have missed some problematic issues with the questionnaires that could potentially reduce validity or generalizability.
As we know from human-computer interaction research, if the interface is not user-friendly, a computer-based assessment can result in decreased test performance and reduced validity.
The weaknesses of the SCoRS include its reliance on informant information, which is not available for some patients, and reduced validity when patient's self-report is the sole information source.
As a general rule, data from participating countries that fail to meet these standards get annotated in the international reports or are even reported in separated report sections, highlighting the possibly reduced validity of the results to the readers.
Other aspects were also connected with reduced validity.
Also, the study sample was very small, which reduces validity.
In simultaneous analysis, participant and companion longitudinal trajectories showed divergence in the high group, suggesting reduced validity of self-report.
Scales containing such DIF items have reduced validity for between-group comparisons because their scores are influenced by a variety of attributes other than those intended [ 19].
